LG L240 Service Manual page 91

5. Downloading Software
The Environment of Downloading Software.
5.2.2 In case of using the PIF( MON Port)
a. Preparation
- Target Handset (LG240)
- PIF
- RS-232 Cable and PIF-to-Phone interface Cable (T.I)
- Power Supply or Battery
b. IBM compatible PC supporting RS-232 with Windows 98 or newer
If you use battery, you should have a battery with the voltage above 3.7V.
LG240 Handset
PIF
POWER SUPPLY
- 92 -
PC with RS-232
4V